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Readers’ wildlife photos

Why Evolution is True Feed - Fri, 03/07/2025 - 6:15am

Please send in your wildlife photos!

Today we have part 9 of Robert Lang‘s collection of photos that he took while visiting Brazil’s region last year. Robert’s captions and IDs are indented, and you can enlarge his photo by clicking on them.

Readers’ Wildlife Photos: The Pantanal, Part IX: Birds

Continuing our mid-2025 journey to the Pantanal in Brazil, by far the largest category of observation and photography was birds: we saw over 100 different species of birds (and this was not even a birding-specific trip, though the outfitter also organizes those for the truly hard core). Here we continue working our way through the alphabetarium of common names.

Potoo (Nyctibius sp.). Our guide spotted this one at night atop a roadside post, and while the lighting made it far beyond the abilities of my big-lens Canon, my iPhone 14 managed to get a decent picture—as one of several tries, mostly unsuccessful, but this one came out:

Purplish jay (Cyanocorax cyanomelas):

Red-crested cardinal (Paroaria coronata):

Red-legged seriema (Cariama cristata):

Greater rhea (Rhea americana):

Rhea chicks:

Ringed kingfisher (Megaceryle torquata):

Roadside hawk (Rupornis magnirostris). Saw a lot of these, some of them even along the side of the road:

Roseate spoonbill (Platalea ajaja) among the caimans:

Caatinga cacholote (Pseudoseisura cristata). Formerly called the rufous cacholote (which was what our guide identified it as):

More birds to come.

Categories: Science

Speeding star offers a rare glimpse of the Milky Way's galactic centre

New Scientist Feed - Fri, 03/07/2025 - 6:00am
A star has been spotted shooting away from the heart of our galaxy at around 500 kilometres per second, giving astronomers clues about a group of stellar objects that are hard to observe directly
Categories: Science

Sex may have evolved as a way to pool resources during tough times

New Scientist Feed - Fri, 03/07/2025 - 4:00am
How sexual reproduction came about has long been a mystery, but an evolutionary model suggests it could have started with cells fusing to increase their food reserves
Categories: Science

Blackbird deaths point to looming West Nile virus threat in the UK

New Scientist Feed - Fri, 03/07/2025 - 2:00am
Mosquito-borne diseases like West Nile virus could become a growing concern in the UK and other northern European nations as the climate warms, with a virus affecting blackbirds showing how these pathogens can take hold
Categories: Science

A Protoplanetary Disk That Refuses to Grow Up

Universe Today Feed - Fri, 03/07/2025 - 1:38am

When young stars form, they accumulate an accretion disk of gas and dust, which eventually forms planets. Typically, this process lasts less than 10 million years, as the increasing radiation from the star disperses the remaining material. However, recent observations from the James Webb Space Telescope have revealed a protoplanetary disk in a system estimated to be 30 million years old—three times longer than the expected lifespan. Scientists have already determined this is not a debris disk created by colliding planets, it’s an intriguing discovery that has forced a review of our model of planetary system and stellar evolution.

Categories: Science

Catching the March Total Lunar Eclipse

Universe Today Feed - Fri, 03/07/2025 - 1:21am

After a long ‘eclipse drought,’ lunar totality once again spans the Americas The end is in sight. If skies are clear, North and South America will witness a fine total lunar eclipse early Friday morning, March 14th. This is the first eclipse of 2025, and the first total lunar eclipse for the hemisphere since November 2022.

Categories: Science

Everything Old Is New Again, Again

Science-based Medicine Feed - Fri, 03/07/2025 - 12:06am

Myths spread by contrarian doctors to minimize COVID are being recycled to minimize measles. The anti-vaccine circle is complete.

The post Everything Old Is New Again, Again first appeared on Science-Based Medicine.
Categories: Science

SpaceX's Starship Flight Test Falls Short for the Second Time in a Row

Universe Today Feed - Thu, 03/06/2025 - 3:50pm

For the second time in a row, SpaceX lost the second stage of its Starship launch system during a flight test, while recovering the first-stage Super Heavy booster.

Categories: Science

There's a Smashed Planet at the Heart of the Helix Nebula

Universe Today Feed - Thu, 03/06/2025 - 3:18pm

An X-ray signal has been detected at the very centre of the Helix Nebula, at the site of its central white dwarf star. It’s a burned out stellar remnant that doesn’t usually emit flashes of X-ray radiation but a new study has been analysing the outburst. The team of researchers think that the stellar corpse smashed into one of its surviving planets and that the X-rays are coming from the planetary debris as it falls onto the surface of the white dwarf.

Categories: Science

Today’s Forecast: Partially Cloudy Skies on an “Ultra-Hot Neptune”

Universe Today Feed - Thu, 03/06/2025 - 2:55pm

An ultra-hot Neptune exoplanet has been observed by JWST and the image reveals dramatically different hemispheres. The planet orbits so close to its host start that it is tidally locked so one hemisphere remains facing the star. On this permanent daytime side, temperatures reach 2,000°C but the temperatures plummet on the daytime side. The observations show that the daytime side has bright reflective clouds on its cooler western hemisphere but not on its eastern side!

Categories: Science

The Athena lander reached the moon – but seems to have fallen over

New Scientist Feed - Thu, 03/06/2025 - 1:52pm
Intuitive Machines' Athena spacecraft has landed on the surface of the moon, but it seems to have fallen over and we do not yet know if it will be able to drill for ice
Categories: Science

Taking A Planet's Pulse

Universe Today Feed - Thu, 03/06/2025 - 1:13pm

The Gaia Hypothesis theorizes that all of Earth's systems are tied together, making one large, living organism. While there's still some disagreement about whether or not that hypothesis is true, it is undeniable that many of Earth's systems are intertwined and that changes in one can affect another. As our technology advances, we are becoming more and more capable of detecting changes in those systems and how those changes affect other systems as well. A new proposal from a robotics expert at NASA's Jet Propulsion Laboratory (JPL) takes that exploration one step further by trying to develop a system that takes the "pulse" of a planet.

Categories: Science

Experts say US flights are safe now but flag warning signs to look for

New Scientist Feed - Thu, 03/06/2025 - 1:02pm
Flying commercially in the US remains low risk despite a recent mid-air collision, near misses and job cuts at the Federal Aviation Administration. But aviation safety experts and former FAA employees identify warning signs that would stop them from flying in the future
Categories: Science

Super sapphire resists scratches, glare, fog and dust

Matter and energy from Science Daily Feed - Thu, 03/06/2025 - 12:45pm
Researchers have discovered techniques to bestow superpowers upon sapphire, a material that most of us think of as just a pretty jewel.
Categories: Science

The US may start vaccinating chickens and cows against bird flu

New Scientist Feed - Thu, 03/06/2025 - 12:31pm
The US Department of Agriculture announced it will allocate $100 million to develop vaccines and other therapies to help contain the spread of bird flu on poultry and dairy farms
Categories: Science

Paralyzed man moves robotic arm with his thoughts

Matter and energy from Science Daily Feed - Thu, 03/06/2025 - 12:31pm
Researchers have enabled a man who is paralyzed to control a robotic arm through a device that relays signals from his brain to a computer. He was able to grasp, move and drop objects just by imagining himself performing the actions.
Categories: Science

Paralyzed man moves robotic arm with his thoughts

Computers and Math from Science Daily Feed - Thu, 03/06/2025 - 12:31pm
Researchers have enabled a man who is paralyzed to control a robotic arm through a device that relays signals from his brain to a computer. He was able to grasp, move and drop objects just by imagining himself performing the actions.
Categories: Science

New 'one-pot' technique a breakthrough for material synthesis

Matter and energy from Science Daily Feed - Thu, 03/06/2025 - 12:29pm
A new technique builds inorganic and polymer battery electrolytes at the same time, in the same vessel. This 'one-pot' in-situ method creates a controlled, homogeneous blend, pairing the conductivity of the inorganic solids with the flexibility of the polymers.
Categories: Science

Gavin Newsom breaks with “progressive” Democrats, proclaims that trans-identified men competing in women’s sports is “unfair”

Why Evolution is True Feed - Thu, 03/06/2025 - 10:34am

It’s not only unconscionable for “progressive” Democrats to cheer on trans-identified males (“transwomen”) who compete in women’s sports, but that behavior certainly hurt the Democrats, especially because most Americans, including Democrats, think that this kind of participation should be forbidden:

A recent New York Times/Ipsos survey found the vast majority of Americans, including a majority of Democrats, don’t think transgender athletes should be permitted to compete in women’s sports.

“Thinking about transgender female athletes — meaning athletes who were male at birth but who currently identify as female — do you think they should or should not be allowed to compete in women’s sports?” the survey asked.

Of the 2,128 people who participated, 79% said biological males who identify as women should not be allowed to participate in women’s sports.

Of the 1,025 people who identified as Democrats or leaning Democrat, 67% said transgender athletes should not be allowed to compete with women.

Among 1,022 Republicans, that number was 94%.

You can find the poll results here.

While at first it seems empathic to allow trans-identified males to compete against women, it’s really unfair to women, and to most of us the total fairness is increased by forbidding that competition. (I still think trans-identified males who want to do sports should compete somewhere, either in an “other” league, or perhaps in men’s sports.)  People recognize this, and Democrats who favor this cross-sex competition simply look clueless. (I am exempting any sports in which men and women perform about equally, though I’m not sure which ones.)

As the reader who sent me this new article from the NYT said, “Perhaps the fever has finally broken.” I think it has, for California governor Gavin Newsom, a diehard and largely “progressive” Democrat, is now going along with most Americans. Click below to read the article, or find it archived here.

An excerpt:

Gov. Gavin Newsom of California, embarking on a personal post-mortem of the failures of his Democratic Party, suggested this week that the participation of transgender athletes in women’s sports was “deeply unfair.”

The comments by Mr. Newsom, who has backed L.G.B.T.Q. causes for decades and was one of the first American elected officials to officiate same-sex weddings, represented a remarkable break from other top Democrats on the issue, and signaled a newly defensive position on transgender rights among many in his party.

Just as surprising as Mr. Newsom’s remarks was the person to whom he made them: Charlie Kirk, a 31-year-old right-wing influencer best known for starting Turning Point USA, the pro-Trump organization that is active on college campuses.

Mr. Newsom invited Mr. Kirk, who has a long history of inflammatory and conspiratorial remarks, onto the debut episode of his new podcast, “This Is Gavin Newsom,” for an 81-minute discussion because, the governor said, “people need to understand your success, your influence, what you’ve been up to.” Mr. Newsom spent much of the conversation reflecting on the myriad ways that former Vice President Kamala Harris’s campaign failed to reach key voters during the 2024 election, losing ground with young people, men and Hispanic voters.

Mr. Newsom is widely seen as having presidential ambitions in 2028 — something he joked about on the podcast — and until recent months, he had often sought to project an image as one of the leaders of the Democratic Party’s opposition to President Trump. In December, he cursed Mr. Trump’s name in an interview with The New York Times, but shortly after the president’s inauguration, Mr. Newsom traveled to Washington for a meeting with Mr. Trump to discuss funding for wildfire relief.

I hope, but not sure I exspect, other Democrats to follow his lead. Certainly lost causes like AOC will now follow.

And yes, this is not a huge issue compared to, say, Ukraine, but one’s stand on it is indicative of both one’s moral compass and of one’s sympathy to real feminism.  I’ll surely be called a transphobe for applauding Newsom, but so be it. I don’t of course think that most legal and moral rights of trans people should be abrogated, but there are a few cases where they do conflict with rights of other groups (jails, changing rooms, etc.), and one should adjudicate these things sensibly.  What one shouldn’t do is hurl slurs at people like Newsom who have a rational approach to the issue.

Categories: Science

Researchers reveal nitrogen's dominant role in global organic aerosol absorption

Matter and energy from Science Daily Feed - Thu, 03/06/2025 - 9:33am
A collaborative research team has introduced a nitrogen-centric framework that explains the light-absorbing effects of atmospheric organic aerosols. This groundbreaking study reveals that nitrogen-containing compounds play a dominant role in the absorption of sunlight by atmospheric organic aerosols worldwide. This discovery signifies a major step towards improving climate models and developing more targeted strategies to mitigate climate impact of airborne particles.
Categories: Science

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